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Studies of Thalidomide's Effects on Rodent Embryos from 1962-2008
By: Joanna Yang, Chanapa Tantibanchachai
| Published: Mar 07, 2014
Thalidomide is a sedative drug introduced to European markets on 1 October 1957 after extensive testing on rodent embryos to ensure its safety. Early…
ContextTeratogenicity testingAbnormalities, HumanThalidomide--Side effectsThalidomide
Intraspecies Chimeras Produced in Laboratory Settings (1960-1975)
By: Sarah Taddeo
| Published: Nov 25, 2014
When cells-but not DNA-from two or more genetically distinct individuals combine to form a new individual, the result is called a chimera. Though…
ContextChimerismEmbryosEmbryonic Stem CellsMosaicism
Lysogenic Bacteria as an Experimental Model at the Pasteur Institute (1915-1965)
By: Valerie Racine
| Published: Oct 10, 2014
Lysogenic bacteria, or virus-infected bacteria, were the primary experimental models used by scientists working in the laboratories of the Pasteur…
ContextInstitut Pasteur (Paris, France)BacteriaEscherichia coliMonod, Jacques
Seed Banking 1979-1994
By: Marci Baranski
| Published: Jan 28, 2014
In the early twentieth century, scientists and agriculturalists collected plants in greenhouses, botanical gardens, and fields. Seed collection…
ContextGermplasm resources, PlantGermplasm resources, Plant--StorageAgrobiodiversityCrops
US Regulatory Response to Thalidomide (1950-2000)
By: Chanapa Tantibanchachai
| Published: Apr 01, 2014
Thalidomide, a drug capable of causing fetal abnormalities (teratogen), has caused greater than ten thousand birth defects worldwide since its…
ContextThalidomideThalidomide--Side effectsTeratogenicity testingMultiple Myeloma
Study of Fossilized Massospondylus Dinosaur Embryos from South Africa (1978-2012)
By: Madison Paige
| Published: Mar 31, 2015
In 1978, James Kitching discovered two dinosaur embryos in a road-cut talus at Roodraai (Red Bend) in Golden Gate Highlands National Park, South…
ContextDinosaursDinosaurs--EggsMassospondylus carinatusMassospondylus
Early Infantile Autism and the Refrigerator Mother Theory (1943-1970)
By: Sean Cohmer
| Published: Aug 19, 2014
In 1943, child psychiatrist Leo Kanner in the US gave the first account of Early Infantile Autism that encouraged psychiatrists to investigate what…
ContextKanner, Leo, 1894-1981AutismAutism spectrum disordersAutism in children
Seed Collection and Plant Genetic Diversity, 1900-1979
By: Marci Baranski
| Published: Nov 01, 2013
Farmers have long relied on genetic diversity to breed new crops, but in the early 1900s scientists began to study the importance of plant genetic…
ContextGermplasm resources, PlantGermplasm resources, Plant--StorageAgrobiodiversityCrops
Hwang Woo-suk's Use of Human Eggs for Research 2002-2005
By: Anne Safiya Clay
| Published: Aug 12, 2014
Hwang Woo-suk, a geneticist in South Korea, claimed in Science magazine in 2004 and 2005 that he and a team of researchers had for the first time…
ContextbioethicsHuman cloning--Research--Law and legislationInformed consent (Medical law)Oocyte Donation
China's One-Child Policy
By: Lijing Jiang
| Published: Mar 31, 2011
In September 1979, China's Fifth National People's Congress passed a policy that encouraged one-child families. Following this decision from the…
ContextethicsReproductionFertilityGovernment